68 University of California Publications in Botany [Vol. 6 



Louteridium Purpusii sp. nov. 



Herbaceum. glabrum : ramis tetragonis sulcatis : foliis oblongo- 

 lanceolatis, basi in petiolnm angiistatis ; laminis 15-20 cm. longis. 

 4-5 em. latis ; margine crenato-dentatis, nervis lateralibus utrinque 

 ca. 16; petiolis 1-2 cm. longis : calycis segmentis tribus fere aequalibiis 

 oblongo-lanceolatis pinnato-venosis, lateralibus 2 clorso valcle costatis, 

 2-8 cm. longis ; pedicellis 3-4 cm. longis. basi braeteolatis ; eymis ad 

 axillas 4-8-floris paniculam aphyllam ca. 3 dm. longam formantibiis; 

 corolla flava calyce duplo longiori. tubo ca. 4 mm. longo; staminibus 

 2 longe exsertis, filamentis basi dilatatis superne gradatim angustatis : 

 capsula ca. 2 cm. longa, ca. 10-sperma, oblonga, apiculata ; disco crasso 

 annulato. 



The specimens have no open flowers. Collected at Finca Irlancla, 



growing along creeks. No. 6969. Type, Herb. Univ. Calif., No. 



172997. 



Diodia aspera sp. nov. 



Canlibus teretibus. pilis patentibiis hirsiitis. ramosis, 2-3 dm. altis : 

 foliis internodiis longioribus, lanceolatis. sessilibus, margine scabris, 

 revolutis, dorso nervo medio setoso. utrinque plus minus setosis, ca. 

 2.5 cm. longis, 3 mm. latis ; stipulis foliis connatis, setis vagina multo 

 longioribus: floribus axillaribus. solitariis. ses.silibus; corolla alba, 

 infundibuliformi, ca. 4mm. longa; calycis limbo 4-lobo, lobis inaequal- 

 ibus : f ructu 2-cocco, lobis calycinis coronato. setoso. 



A few specimens only were collected on Sierra de Tonala. No. 

 6830. Type. Herb. Univ. Calif., No. 172537. 



Crusea data sp. nov. 



Annua, 5-6 dm. alta : caulibus hirsutis: foliis parum hirsutis, 

 lanceolatis. ses.silibus, subtus nervis validis, ca. 8 cm. longis, 17 mm. 

 latis ; stipulis in vaginam ciliatam connatis : floribus in capita involu- 

 crata congestis; braeteis majoribus involucri oblongo-lanceolatis, 3-4 

 cm. longis; calycis lobis lineari-lanceolatis. ca. 6mm. longis; tubo 

 hir.sutissimo ; corolla violacea. hypocraterif ormi, tubo gracili, ca. 8 mm. 

 longo ; staminibus longe ex.sertis : styli ramis linearibus. 



Collected on Sierra de Tonala, growing in rocky soil. No. 6640. 



Type, Herb. Univ. Calif., No. 172353. 



OTOCALYX gen. nov. Rubiacearum 



Calycis tubus turbinatus; limbi lobi 4. unus in laminam foliaceam 

 dilatatus, persistentes. Corollae tubus cylindraceus. superne parum 

 ampliatus, extus sericeus; limbi lobi 4. imbrieati. Stamina 4. fauce 

 corollae inserta. filamentis brevissimis ; antherae dorso affixae, oblongae. 



